diff options
| author |   Ole Troan <ot@cisco.com> | 2019-10-09 13:33:19 +0200 |
|---|---|---|
| committer |   Neale Ranns <nranns@cisco.com> | 2019-11-11 12:33:36 +0000 |
| commit | eb284a1f8f10d752285a0a59e75bc54acae50779 (patch) | |
| tree | 4ce777b223a51fa70f9e0dc18e7842b488b81cd6 /test | |
| parent | d318a996b7bdcf0246b2d9927a918a3773a88fa6 (diff) | |
ip: functional interface to ip fragmentation
This provides a functional interface to IP fragmentation.
Allowing external features to fragment. Supports
arbitrary encap size, for e.g. MPLS or inner fragmentation
of tunnels.
This also removed dual loop in MAP that was fundamentally broken.
Type: fix
Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: Ia89ecec8ee3cbe2416edbe87630fdb714898c2a8
Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'test')
| -rw-r--r-- | test/test_mpls.py | 39 | ||||
| -rw-r--r-- | test/vpp_interface.py | 12 |
2 files changed, 49 insertions, 2 deletions
diff --git a/test/test_mpls.py b/test/test_mpls.py index ebeea5fb367..8ed047df5f4 100644 --- a/test/test_mpls.py +++ b/test/test_mpls.py @@ -154,7 +154,8 @@ class TestMPLS(VppTestCase): pkts.append(p) return pkts - def create_stream_ip4(self, src_if, dst_ip, ip_ttl=64, ip_dscp=0): + def create_stream_ip4(self, src_if, dst_ip, ip_ttl=64, + ip_dscp=0, payload_size=None): self.reset_packet_infos() pkts = [] for i in range(0, 257): @@ -166,6 +167,8 @@ class TestMPLS(VppTestCase): UDP(sport=1234, dport=1234) / Raw(payload)) info.data = p.copy() + if payload_size: + self.extend_packet(p, payload_size) pkts.append(p) return pkts @@ -911,7 +914,7 @@ class TestMPLS(VppTestCase): """ MPLS Tunnel Tests - Pipe """ # - # Create a tunnel with a single out label + # Create a tunnel with two out labels # mpls_tun = VppMPLSTunnelInterface( self, @@ -964,6 +967,38 @@ class TestMPLS(VppTestCase): VppMplsLabel(46), VppMplsLabel(33, ttl=255)]) + # + # change tunnel's MTU to a low value + # + mpls_tun.set_l3_mtu(1200) + + # send IP into the tunnel to be fragmented + tx = self.create_stream_ip4(self.pg0, "10.0.0.3", + payload_size=1500) + rx = self.send_and_expect(self.pg0, tx, self.pg0, len(tx)*2) + + fake_tx = [] + for p in tx: + fake_tx.append(p) + fake_tx.append(p) + self.verify_capture_tunneled_ip4(self.pg0, rx, fake_tx, + [VppMplsLabel(44), + VppMplsLabel(46)]) + + # send MPLS into the tunnel to be fragmented + tx = self.create_stream_ip4(self.pg0, "10.0.0.4", + payload_size=1500) + rx = self.send_and_expect(self.pg0, tx, self.pg0, len(tx)*2) + + fake_tx = [] + for p in tx: + fake_tx.append(p) + fake_tx.append(p) + self.verify_capture_tunneled_ip4(self.pg0, rx, fake_tx, + [VppMplsLabel(44), + VppMplsLabel(46), + VppMplsLabel(33, ttl=255)]) + def test_tunnel_uniform(self): """ MPLS Tunnel Tests - Uniform """ diff --git a/test/vpp_interface.py b/test/vpp_interface.py index 431a03a6858..a5f6f45fdaf 100644 --- a/test/vpp_interface.py +++ b/test/vpp_interface.py @@ -495,3 +495,15 @@ class VppInterface(object): def get_tx_stats(self): c = self.test.statistics.get_counter("^/if/tx$") return c[0][self.sw_if_index] + + def set_l3_mtu(self, mtu): + self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [mtu, 0, 0, 0]) + + def set_ip4_mtu(self, mtu): + self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [0, mtu, 0, 0]) + + def set_ip6_mtu(self, mtu): + self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [0, 0, mtu, 0]) + + def set_mpls_mtu(self, mtu): + self.test.vapi.sw_interface_set_mtu(self.sw_if_index, [0, 0, 0, mtu]) |